Enable contrast version

# Tutor profile: Arrash S.

Inactive
Arrash S.
Interdisciplinary professional who likes to show others how to turn theory into practice
Tutor Satisfaction Guarantee

## Questions

### Subject:Risk Management and Insurance

TutorMe
Question:

How can we reduce the risk associated with an asset or activity?

Inactive
Arrash S.

Before we can discuss how to reduce risks associated with different hazards, it is essential to acknowledge that risk is the product of potential loss severity and loss probability. Within the safety profession, we typically rely on a well-established control hierarchy to reduce risk: 1. Eliminate the hazard. 2. Substitute the hazard for a less hazardous process or material. 3. Engineering control that provides physical protection in the system. 4. Administrative control to change work practices. 5. Personal protective equipment that offers physical protection on the user. Elimination and substitution are the most effective controls available but often are not practical. Meanwhile, personal protective equipment may be easy to put in place but provide less protection than other controls, which is why the vast majority of controls will be engineering and administrative in nature. However, it is crucial to keep in mind that some controls at each level reduce the probability of loss. Some reduce the severity of consequences, but others may be effective at reducing both probability and severity.

### Subject:Writing

TutorMe
Question:

How can a writer make it easier for readers to comprehend complex information and receive key takeaways?

Inactive
Arrash S.

### Subject:Statistics

TutorMe
Question:

What are the various types of error found in statistics?

Inactive
Arrash S.

There are three common errors found in statistics: Type I, Type II, and Type III. Type I errors are generally the most problematic because it means that the null hypothesis will be rejected when it should not be. A common example of this type of error would be a clinical drug trial indicating a statistically significant effect of the drug on a given medical condition, but in reality, there is no effect. Type II errors are the opposite of Type I errors, which means we failed to reject the null hypothesis when there is a statistically significant effect. Using the drug trial example, the study would indicate the drug had a statistically insignificant effect on the medical condition when there was a significant improvement in the patient's condition. Type II errors are ususally less problematic than Type I errors because they maintain the status quo, but can impede new knowledge discovery. Type III errors occur when a researcher correctly rejects the null hypothesis, but for the wrong reason. This can occur easily in correlational studies where multiple independent variables may influence the dependent variable under examination.

## Contact tutor

Send a message explaining your
needs and Arrash will reply soon.
Contact Arrash

Start Lesson

## FAQs

What is a lesson?
A lesson is virtual lesson space on our platform where you and a tutor can communicate. You'll have the option to communicate using video/audio as well as text chat. You can also upload documents, edit papers in real time and use our cutting-edge virtual whiteboard.
How do I begin a lesson?
If the tutor is currently online, you can click the "Start Lesson" button above. If they are offline, you can always send them a message to schedule a lesson.
Who are TutorMe tutors?
Many of our tutors are current college students or recent graduates of top-tier universities like MIT, Harvard and USC. TutorMe has thousands of top-quality tutors available to work with you.
BEST IN CLASS SINCE 2015
TutorMe homepage